Code 12 GPU Passthrough

A

Abelard

New Member
May 16, 2018
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  1. Config file for the VM on ProxMox is the following:
    Code: 
    args: -cpu host,kvm=off
machine: q35
bootdisk: ide0
cores: 1
cpu: host
ide0: local-lvm:vm-100-disk-1,size=25G
ide2: local:iso/win7x64.iso,media=cdrom
memory: 2048
name: win7
net0: e1000=C6:42:2D:23:A4:AF,bridge=vmbr0
numa: 0
ostype: win7
scsihw: virtio-scsi-pci
smbios1: uuid=6461691a-4bba-4d6c-8ed5-9560c131939c
sockets: 2
hostpci0: 00:02,pcie=1,x-vga=on
vga: none
  2. IOMMU is working:
    Code: 
    root@pve:~# dmesg | grep -e IOMMU
[    0.000000] Warning: PCIe ACS overrides enabled; This may allow non-IOMMU protected peer-to-peer DMA
[    0.000000] DMAR: IOMMU enabled
[    0.065200] DMAR-IR: IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
root@pve:~# find /sys/kernel/iommu_groups/ -type l
/sys/kernel/iommu_groups/5/devices/0000:00:1c.0
/sys/kernel/iommu_groups/5/devices/0000:01:00.0
/sys/kernel/iommu_groups/3/devices/0000:00:16.0
/sys/kernel/iommu_groups/1/devices/0000:00:02.0
/sys/kernel/iommu_groups/6/devices/0000:00:1f.3
/sys/kernel/iommu_groups/6/devices/0000:00:1f.4
/sys/kernel/iommu_groups/6/devices/0000:00:1f.2
/sys/kernel/iommu_groups/6/devices/0000:00:1f.0
/sys/kernel/iommu_groups/4/devices/0000:00:17.0
/sys/kernel/iommu_groups/2/devices/0000:00:14.2
/sys/kernel/iommu_groups/2/devices/0000:00:14.0
/sys/kernel/iommu_groups/0/devices/0000:00:00.0

  3. The vfio-pci driver is being used correctly:
    Code: 
    root@pve:~# lspci -k
00:02.0 VGA compatible controller: Intel Corporation Device 5906 (rev 02)
    Subsystem: Intel Corporation Device 2212
    Kernel driver in use: vfio-pci
    Kernel modules: i915

  4. Other relevant information:
    Code: 
    root@pve:~# pveversion -v
proxmox-ve: 5.1-32 (running kernel: 4.13.13-2-pve)
pve-manager: 5.1-41 (running version: 5.1-41/0b958203)
pve-kernel-4.13.13-2-pve: 4.13.13-32
libpve-http-server-perl: 2.0-8
lvm2: 2.02.168-pve6
corosync: 2.4.2-pve3
libqb0: 1.0.1-1
pve-cluster: 5.0-19
qemu-server: 5.0-18
pve-firmware: 2.0-3
libpve-common-perl: 5.0-25
libpve-guest-common-perl: 2.0-14
libpve-access-control: 5.0-7
libpve-storage-perl: 5.0-17
pve-libspice-server1: 0.12.8-3
vncterm: 1.5-3
pve-docs: 5.1-12
pve-qemu-kvm: 2.9.1-5
pve-container: 2.0-18
pve-firewall: 3.0-5
pve-ha-manager: 2.0-4
ksm-control-daemon: 1.2-2
glusterfs-client: 3.8.8-1
lxc-pve: 2.1.1-2
lxcfs: 2.0.8-1
criu: 2.11.1-1~bpo90
novnc-pve: 0.6-4
smartmontools: 6.5+svn4324-1
zfsutils-linux: 0.7.3-pve1~bpo9

  5. kernel settings:
    Code: 
    quiet intel_iommu=on pcie_acs_override=downstream video=efifb:off
  6. /etc/modules:
    Code: 
    vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd
pci_stub
 
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